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KbdFreeFocus

From EDM2
Revision as of 02:40, 5 December 2016 by Ak120 (talk | contribs) (Ak120 moved page OS2 API:CPI:LEGACY:KbdFreeFocus to KbdFreeFocus)

Description

This call frees the logical-to-physical keyboard bond created by KbdGetFocus.

Syntax

KbdFreeFocus (KbdHandle)

Parameters

KbdHandle (HKBD) - input
Default keyboard or the logical keyboard.

Return Code

rc (USHORT) - return

Return code descriptions are:

  • 0 NO_ERROR
  • 439 ERROR_KBD_INVALID_HANDLE
  • 445 ERROR_KBD_FOCUS_REQUIRED
  • 464 ERROR_KBD_DETACHED
  • 504 ERROR_KBD_EXTENDED_SG

Remarks

KbdFreeFocus may be replaced by issuing KbdRegister. Unlike other keyboard subsystem functions, the replaced KbdFreeFocus is called only if there is an outstanding focus.

Example Code

C Binding

#define INCL_KBD

USHORT  rc = KbdFreeFocus(KbdHandle);

HKBD             KbdHandle;     /* Keyboard handle */

USHORT           rc;            /* return code */

MASM Binding

EXTRN  KbdFreeFocus:FAR
INCL_KBD            EQU 1

PUSH   WORD    KbdHandle     ;Keyboard handle
CALL   KbdFreeFocus

Returns WORD